.icon-blank{
	background:url('icons/blank.gif') no-repeat center center;
}
.icon-add{
	background:url('icons/edit_add.png') no-repeat center center;
}
.icon-edit{
	background:url('icons/pencil.png') no-repeat center center;
}
.icon-remove{
	background:url('icons/edit_remove.png') no-repeat center center;
}
.icon-save{
	background:url('icons/filesave.png') no-repeat center center;
}
.icon-cut{
	background:url('icons/cut.png') no-repeat center center;
}
.icon-ok{
	background:url('icons/ok.png') no-repeat center center;
}
.icon-no{
	background:url('icons/no.png') no-repeat center center;
}
.icon-cancel{
	background:url('icons/cancel.png') no-repeat center center;
}
.icon-reload{
	background:url('icons/reload.png') no-repeat center center;
}
.icon-search{
	background:url('icons/search.png') no-repeat center center;
}
.icon-print{
	background:url('icons/print.png') no-repeat center center;
}
.icon-help{
	background:url('icons/help.png') no-repeat center center;
}
.icon-undo{
	background:url('icons/undo.png') no-repeat center center;
}
.icon-redo{
	background:url('icons/redo.png') no-repeat center center;
}
.icon-back{
	background:url('icons/back.png') no-repeat center center;
}
.icon-sum{
	background:url('icons/sum.png') no-repeat center center;
}
.icon-tip{
	background:url('icons/tip.png') no-repeat center center;
}

.icon-mini-add{
	background:url('icons/mini_add.png') no-repeat center center;
}
.icon-mini-edit{
	background:url('icons/mini_edit.png') no-repeat center center;
}
.icon-mini-refresh{
	background:url('icons/mini_refresh.png') no-repeat center center;
}
.icon-cn{
	background:url('icons/icon-cn.png') no-repeat;
}
.icon-en{
	background:url('icons/icon-en.png') no-repeat;
}
.icon-math{
	background:url('icons/icon-math.png') no-repeat;
}
.icon-maintain{
	background:url('icons/icon-maintain.png') no-repeat;
}
.icon-menu{
	background:url('icons/icon-menu.png') no-repeat;
}
.icon-role{
	background:url('icons/icon-role.png') no-repeat;
}
.icon-video{
	background:url('icons/icon-video.png') no-repeat;
}
.icon-upload{
	background:url('icons/icon-upload.png') no-repeat;
}
.icon-download{
	background:url('icons/icon-download.png') no-repeat;
}
.icon-sound{
	background:url('icons/icon-sound.png') no-repeat;
}
.icon-player{
	background:url('icons/icon-player.png') no-repeat;
}
.icon-tree{
	background:url('icons/tree_folder.gif') no-repeat;
}
.icon-student{
	background:url('icons/student.png') no-repeat;
}
.icon-teacher{
	background:url('icons/teacher.png') no-repeat;
}
.icon-school{
	background:url('icons/icon-school.png') no-repeat;
}
.icon-math{
	background:url('icons/icon-math.png') no-repeat;
}